Animal rights activists covered with fake blood sit on the floor during a protest against the use of animals in research to mark World Day for Animals in Laboratories in central Madrid April 24, 2014.... more 
Animal rights activists covered with fake blood sit on the floor during a protest against the use of animals in research to mark World Day for Animals in Laboratories in central Madrid April 24, 2014. The sign reads, "How many rabbits do your shampoo kill?" REUTERS/Andrea Comas (SPAIN - Tags: CIVIL UNREST ANIMALS SCIENCE TECHNOLOGY) less 
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Reuters | Photo By ANDREA COMAS / REUTERS
Thu, Apr 24, 2014 7:57 AM EDT